FEP films offer excellent chemical resistance and release properties, and can also be easily fabricated. Compared to PFA, FEP films are lower in cost and temperature, and they have a low dielectric constant and dissipation with a continuous use temperature of 400°F (205°C), suitable for use in cryogenic and high temperature applications.
We offer four different options for FEP film:
Material | Use Temperature | Tensile Strength | Elongation | Modulus | Tear Resistance | Density | Coeff. of Friction | Chemical Resistance | Abrasion Resistance | Light Transparency |
---|---|---|---|---|---|---|---|---|---|---|
PFA | 260°C | Good | Good | Good | Good | High | Best | Best | Good | Best |
FEP | 205°C | Good | Good | Good | Good | High | Best | Best | Good | Best |
ECTFE | 170°C | Best | Better | Best | Better | Lowest | Better | Better | Best | Good |
ETFE | 165°C | Better | Good | Better | Better | Lower | Better | Good | Better | Best |
CHEMFILM FEP-FG, general purpose film, is manufactured from fluoroinated ethylene propylene resin. This film grade provides a low dielectric constant and excellent dissipation over a wide range of temperatures, from -425°F to 400°F (-254°C to 205°C), and frequencies for low signal distortion and attenuation in flexible printed circuit and flat cable applications.
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RELATED APPLICATIONS: Dielectric insulation, Solar thermal collection, Industrial surface protection, Medical surface protection
CHEMFILM FEP-FS film is made from high molecular weight fluorinated ethylene propylene resin for applications where high flex life and stress-crack-resistant performance are required, such as tank linings and diaphragms. Its temperature performance
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RELATED APPLICATIONS: Natural gas expansion joints, Diaphragms and gaskets, High performance bags
CHEMFILM FEP-RF, release film, is a clear or pigmented film manufactured from fluorinated ethylene propylene resin. FEP-RF is specifically desired for release applications. The non-stick surface, chemical resistance, and 400°F (205°C) usage temperature make it an ideal release film for composite molding over a wide range of resin systems.
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RELATED APPLICATIONS: Composite molding, Wind turbine manufacturing
FEP-WF welding film is an ideal economical solution for applications that don’t require high aesthetic standards, such as hot melt adhesives (welding tape). FEP-WF film has an operating temperature range of -425°F to 400°F (-254°C to 205°C) and possesses all of the physical, mechanical, and thermal properties of FEP-FG grade, while offering up to 25% savings.
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RELATED APPLICATIONS: Process belting and casting, Welding